Bitcoin has not only been just a trendsetter, ushering in a wave of cryptocurrencies built o
n a decentralized peer-to-peer network, but also has become the de facto standard for cryptocurrencies, inspiring an ever-growing legion of followers and spinoffs.
KEY TAKEAWAYS
A cryptocurrency, broadly defined, is currency that takes the form of tokens or “coins” and exists on a distributed and decentralized ledger.
Beyond that, the field of cryptocurrencies has expanded dramatically since Bitcoin was launched over a decade ago, and the next great digital token may be released tomorrow.
Bitcoin continues to lead the pack of cryptocurrencies in terms of market capitalization, user base, and popularity.
Other virtual currencies such as Ethereum are being used to create decentralized financial systems for those without access to traditional financial products.
Some altcoins are being endorsed as they have newer features than Bitcoin, such as the ability to handle more transactions per second or use different consensus algorithms like proof-of-stake.
What Are Cryptocurrencies?
Before we take a closer look at some of these alternatives to Bitcoin, let’s step back and briefly examine what we mean by terms like cryptocurrency and altcoin. A cryptocurrency, broadly defined, is virtual or digital money that takes the form of tokens or “coins.” While some cryptocurrencies have ventured into the physical world with credit cards or other projects, the large majority remain entirely intangible
The “crypto” in cryptocurrencies refers to complicated cryptography that allows for the creation and processing of digital currencies and their transactions across decentralized systems. Alongside this important “crypto” feature of these currencies is a common commitment to decentralization; cryptocurrencies are typically developed as code by teams who build in mechanisms for issuance (often, although not always, through a process called “mining”) and other controls.
Cryptocurrencies are almost always designed to be free from government manipulation and control, although as they have grown more popular, this foundational aspect of the industry has come under fire. The currencies modeled after Bitcoin are collectively called altcoins, and in some cases “shitcoins,” and have often tried to present themselves as modified or improved versions of Bitcoin. While some of these currencies may have some impressive features that Bitcoin does not, matching the level of security that Bitcoin’s networks achieve largely has yet to be seen by an altcoin.
1) Bitcoin Cash (BCH)
Bitcoin Cash (BCH) holds an important place in the history of altcoins because it is one of the earliest and most successful hard forks of the original Bitcoin. In the cryptocurrency world, a fork takes place as the result of debates and arguments between developers and miners. Due to the decentralized nature of digital currencies, wholesale changes to the code underlying the token or coin at hand must be made due to general consensus; the mechanism for this process varies according to the particular cryptocurrency.
When different factions can’t agree, sometimes the digital currency is split, with the original chain remaining true to its original code and the new chain beginning life as a new version of the prior coin, complete with changes to its code.
BCH began its life in August 2017 as a result of one of these splits. The debate that led to the creation of BCH had to do with the issue of scalability; the Bitcoin network has a limit on the size of blocks: one megabyte (MB). BCH increases the block size from one MB to eight MBs, with the idea being that larger blocks can hold more transactions within them, and the transaction speed would therefore be increased. It also makes other changes, including the removal of the Segregated Witness protocol that impacts block space. As of January 2021, BCH has a market capitalization of $8.9 billion and a value per token of $513.45.
2) Stellar (XLM)
Stellar is an open blockchain network designed to provide enterprise solutions by connecting financial institutions for the purpose of large transactions. Huge transactions between banks and investment firms—typically taking several days, involving a number of intermediaries, and costing a good deal of money—can now be done nearly instantaneously with no intermediaries and cost little to nothing for those making the transaction.
While Stellar has positioned itself as an enterprise blockchain for institutional transactions, it is still an open blockchain that can be used by anyone. The system allows for cross-border transactions among any currencies. Stellar’s native currency is Lumens (XLM). The network requires users to hold Lumens to be able to transact on the network.
Stellar was founded by Jed McCaleb, a founding member of Ripple Labs and developer of the Ripple protocol. He eventually left his role with Ripple and went on to cofound the Stellar Development Foundation. Stellar Lumens have a market capitalization of $6.1 billion and are valued at $0.27 as of January 2021.
3) Polkadot (DOT)
Polkadot is a unique proof-of-stake cryptocurrency that is aimed at delivering interoperability among other blockchains. Its protocol is designed to connect permissioned and permission-less blockchains, as well as oracles, to allow systems to work together under one roof.
Polkadot’s core component is its relay chain that allows the interoperability of varying networks. It also allows for “parachains,” or parallel blockchains with their own native tokens for specific-use cases.
Where Polkadot differs from Ethereum is that rather than creating just decentralized applications on Polkadot, developers can create their own blockchain while also using the security that Polkadot’s chain already has. With Ethereum, developers can create new blockchains but need to create their own security measures, which can leave new and smaller projects open to attack, as the larger a blockchain, the more security it has. This concept in Polkadot is known as shared security.
Polkadot was created by Gavin Wood, another member of the core founders of the Ethereum project who had differing opinions on the project’s future. As of January 2021, Polkadot has a market capitalization of $11.2 billion and one DOT trades for $12.54
4) Cardano (ADA)
Cardano is an “Ouroboros proof-of-stake” cryptocurrency that was created with a research-based approach by engineers, mathematicians, and cryptography experts. The project was cofounded by Charles Hoskinson, one of the five initial founding members of Ethereum. After having some disagreements with the direction Ethereum was taking, he left and later helped to create Cardano.
The team behind Cardano created its blockchain through extensive experimentation and peer-reviewed research. The researchers behind the project have written over 90 papers on blockchain technology across a range of topics. This research is the backbone of Cardano.
Due to this rigorous process, Cardano seems to stand out among its proof-of-stake peers as well as other large cryptocurrencies. Cardano has also been dubbed the “Ethereum killer,” as its blockchain is said to be capable of more. That said, Cardano is still in its early stages. While it has beaten Ethereum to the proof-of-stake consensus model, it still has a long way to go in terms of decentralized financial applications
Cardano aims to be the world’s financial operating system by establishing decentralized financial products similar to Ethereum as well as providing solutions for chain interoperability, voter fraud, and legal contract tracing, among other things. As of January 2021, Cardano has a market capitalization of $9.8 billion and one ADA trades for $0.31.
5) Ethereum (ETH)
The first Bitcoin alternative on our list, Ethereum is a decentralized software platform that enables smart contracts and decentralized applications (dapps) to be built and run without any downtime, fraud, control, or interference from a third party. The goal behind Ethereum is to create a decentralized suite of financial products that anyone in the world can freely access, regardless of nationality, ethnicity, or faith. This aspect makes the implications for those in some countries more compelling, as those without state infrastructure and state identifications can get access to bank accounts, loans, insurance, or a variety of other financial products.
The applications on Ethereum are run on ether, its platform-specific cryptographic token. Ether is like a vehicle for moving around on the Ethereum platform and is sought mostly by developers looking to develop and run applications inside Ethereum, or now, by investors looking to make purchases of other digital currencies using ether. Ether, launched in 2015, is currently the second-largest digital currency by market capitalization after Bitcoin, although it lags behind the dominant cryptocurrency by a significant margin. As of January 2021, ether’s market cap is roughly 19% of Bitcoin’s size.
In 2014, Ethereum launched a presale for ether, which received an overwhelming response; this helped to usher in the age of the initial coin offering (ICO). According to Ethereum, it can be used to “codify, decentralize, secure and trade just about anything.” Following the attack on the decentralized autonomous organization (DAO) in 2016, Ethereum was split into Ethereum (ETH) and Ethereum Classic (ETC). As of January 2021, Ethereum (ETH) has a market capitalization of $138.3 billion and a per-token value of $1,218.59. In 2021, Ethereum plans to change its consensus algorithm from proof-of-work to proof-of-stake. This move will allow Ethereum’s network to run itself with far less energy and improved transaction speed. Proof-of-stake allows network participants to “stake” their ether to the network. This process helps to secure the network and process the transactions that occur. Those who do this are rewarded ether, similar to an interest account. This is an alternative to Bitcoin’s proof-of-work mechanism, where miners are rewarded more Bitcoin for processing transactions.
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